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/* NSC -- new Scala compiler
* Copyright 2005-2010 LAMP/EPFL
*/
package scala.tools.nsc
package backend.jvm
import ch.epfl.lamp.fjbg._
import symtab.Flags
trait GenAndroid {
self: GenJVM =>
import global._
import icodes._
import opcodes._
private val fieldName = "CREATOR"
private lazy val AndroidParcelableInterface =
try definitions.getClass("android.os.Parcelable")
catch { case _: FatalError => NoSymbol }
private lazy val AndroidCreatorClass =
if (AndroidParcelableInterface == NoSymbol) NoSymbol
else definitions.getClass("android.os.Parcelable$Creator")
def isAndroidParcelableClass(sym: Symbol) = (
(AndroidParcelableInterface != NoSymbol) &&
(sym.info.parents contains AndroidParcelableInterface.tpe)
)
def addCreatorCode(codegen: BytecodeGenerator, block: BasicBlock) = {
import codegen._
val fieldSymbol = clasz.symbol.newValue(NoPosition, newTermName(fieldName))
.setFlag(Flags.STATIC | Flags.FINAL)
.setInfo(AndroidCreatorClass.tpe)
val methodSymbol = definitions.getMember(clasz.symbol.companionModule, fieldName)
clasz addField new IField(fieldSymbol)
block emit CALL_METHOD(methodSymbol, Static(false))
block emit STORE_FIELD(fieldSymbol, true)
}
def legacyAddCreatorCode(codegen: BytecodeGenerator, clinit: JExtendedCode) = {
import codegen._
val creatorType = javaType(AndroidCreatorClass)
jclass.addNewField(PublicStaticFinal,
fieldName,
creatorType)
val moduleName = javaName(clasz.symbol)+"$"
clinit.emitGETSTATIC(moduleName,
nme.MODULE_INSTANCE_FIELD.toString,
new JObjectType(moduleName))
clinit.emitINVOKEVIRTUAL(moduleName, fieldName,
new JMethodType(creatorType, Array()))
clinit.emitPUTSTATIC(jclass.getName(), fieldName, creatorType)
}
}
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